Patents by Inventor Jean-Luc Bucaille
Jean-Luc Bucaille has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11822289Abstract: Disclosed is a method including: a) obtaining a substrate extending in a predetermined plane with a first layer parallel to the plane; b) forming a through-hole in the first layer; c) depositing a second layer on the first, the second layer filling the a through-hole to form a bridge of material; d) etching a hairspring in an etching layer made up of the second layer or the substrate, the one of the second layer and the substrate in which the a hairspring is not etched constituting a support, the bridge of material connecting the hairspring to the support perpendicular to the predetermined plane; e) removing the first layer, the hairspring remaining attached to the support by the bridge of material; f) subjecting the hairspring to a thermal treatment; and g) detaching the hairspring from the support.Type: GrantFiled: February 21, 2019Date of Patent: November 21, 2023Assignee: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA—RECHERCHE ET DEVELOPPEMENTInventors: Michel Despont, Frédéric Kohler, Olivier Hunziker, Jean-Luc Bucaille
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Patent number: 11796966Abstract: A method for producing a timepiece spring includes the following steps: producing a piece based on silicon, having the desired shape of the timepiece spring; thermally oxidising the piece; deoxidising the piece; annealing the piece in a reducing atmosphere; forming a silicon oxide layer on the piece.Type: GrantFiled: December 18, 2018Date of Patent: October 24, 2023Assignee: PATEK PHILIPPE SA GENEVEInventors: Sylvain Jeanneret, Frédéric Maier, Jean-Luc Bucaille
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Publication number: 20230136065Abstract: The method for manufacturing a timepiece component is capable of thermocompensating a functional assembly including the timepiece component. The method includes at least the following actions: a) providing (e1) a substrate (1) of semiconductor or metallic material; b) proceeding with the deposition (e2) of a polycrystalline or monocrystalline silicon layer (5) on the substrate (1); c) releasing (e4) the timepiece component (10) from the substrate (1).Type: ApplicationFiled: February 18, 2021Publication date: May 4, 2023Applicant: ROLEX SAInventors: Jean-Luc Bucaille, Olivier Hunziker, Frédéric Kohler
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Publication number: 20230126149Abstract: Disclosed is a method for manufacturing a horological component according to which a silicon-based piece having the desired shape of the horological component is produced and the piece is subjected to a thermal oxidation and deoxidation treatment to remove a predetermined thickness of silicon in order to increase the mechanical strength of the piece. This method is characterized in that the thermal oxidation and deoxidation treatment is carried out in several steps, each step including a thermal oxidation phase followed by a deoxidation phase.Type: ApplicationFiled: March 16, 2021Publication date: April 27, 2023Inventors: Jean-Luc BUCAILLE, Sylvain JEANNERET
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Publication number: 20220326657Abstract: Disclosed is a method of making a timepiece spring from monocrystalline material including the following steps: drawing the spring; identifying one or more zones of weakness of the spring in which or in at least one of which the spring will break in the event of excessive deformation; manufacturing the spring from a wafer of monocrystalline material extending in a determined plane, while orienting the spring in the wafer such that the direction of the macroscopic stresses in the or each zone of weakness when the spring is deformed is substantially parallel to a plane of cleavage of the material intersecting the determined plane. Also disclosed is a timepiece spring obtained by such a method.Type: ApplicationFiled: September 8, 2020Publication date: October 13, 2022Inventor: Jean-Luc BUCAILLE
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Patent number: 11249440Abstract: In an oscillator for a timepiece including a balance and a hairspring, the balance lacks equilibrium, such that: the curves for running of the oscillator owing to weight of the hairspring as a function of the oscillation amplitude of the balance in at least four vertical positions of the oscillator spaced by 90° each pass through 0 at an oscillation amplitude of the balance between 200° and 240°; and between oscillation amplitudes of 150° and 280°, curves representing the running of the oscillator owing to lack of equilibrium in the balance as a function of the oscillation amplitude in the vertical positions each has an average slope of opposite sign to the average slope of the corresponding curve among the curves representing the running of the oscillator owing to the weight of the hairspring. A reduction in the running discrepancies between the vertical positions can thus be achieved.Type: GrantFiled: March 15, 2017Date of Patent: February 15, 2022Assignee: PATEK PHILIPPE SA GENEVEInventor: Jean-Luc Bucaille
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Publication number: 20210109483Abstract: A method for producing a timepiece spring includes the following steps: producing a piece based on silicon, having the desired shape of the timepiece spring; thermally oxidising the piece; deoxidising the piece; annealing the piece in a reducing atmosphere; forming a silicon oxide layer on the piece.Type: ApplicationFiled: December 18, 2018Publication date: April 15, 2021Inventors: Sylvain JEANNERET, Frédéric MAIER, Jean-Luc BUCAILLE
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Publication number: 20200379408Abstract: Disclosed is a method including: a) obtaining a substrate extending in a predetermined plane with a first layer parallel to the plane; b) forming a through-hole in the first layer; c) depositing a second layer on the first, the second layer filling the a through-hole to form a bridge of material; d) etching a hairspring in an etching layer made up of the second layer or the substrate, the one of the second layer and the substrate in which the a hairspring is not etched constituting a support, the bridge of material connecting the hairspring to the support perpendicular to the predetermined plane; e) removing the first layer, the hairspring remaining attached to the support by the bridge of material; f) subjecting the hairspring to a thermal treatment; and g) detaching the hairspring from the support.Type: ApplicationFiled: February 21, 2019Publication date: December 3, 2020Inventors: Michel DESPONT, Frédéric KOHLER, Olivier HUNZIKER, Jean-Luc BUCAILLE
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Method for fabrication of a balance spring of a predetermined stiffness by local removal of material
Patent number: 10338528Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove, locally, a volume of material, in order to obtain the balance spring having the dimensions necessary for said predetermined stiffness.Type: GrantFiled: November 18, 2016Date of Patent: July 2, 2019Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA—Recherche et developpementInventors: Frederic Kohler, Jean-Luc Bucaille, Olivier Hunziker -
Patent number: 10324418Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions to obtain a deliberately lower stiffness, determining the stiffness of the balance spring formed in step a) in order to compensate for said missing thickness of material required to obtain the balance spring having the dimensions necessary for said predetermined stiffness.Type: GrantFiled: December 8, 2016Date of Patent: June 18, 2019Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et développementInventors: Frederic Kohler, Jean-Luc Bucaille, Olivier Hunziker
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Publication number: 20190049900Abstract: In an oscillator for a timepiece including a balance and a hairspring, the balance lacks equilibrium, such that: the curves for running of the oscillator owing to weight of the hairspring as a function of the oscillation amplitude of the balance in at least four vertical positions of the oscillator spaced by 90° each pass through 0 at an oscillation amplitude of the balance between 200° and 240°; and between oscillation amplitudes of 150° and 280°, curves representing the running of the oscillator owing to lack of equilibrium in the balance as a function of the oscillation amplitude in the vertical positions each has an average slope of opposite sign to the average slope of the corresponding curve among the curves representing the running of the oscillator owing to the weight of the hairspring. A reduction in the running discrepancies between the vertical positions can thus be achieved.Type: ApplicationFiled: March 15, 2017Publication date: February 14, 2019Inventor: Jean-Luc BUCAILLE
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METHOD FOR FABRICATION OF A BALANCE SPRING OF A PREDETERMINED STIFFNESS BY LOCAL REMOVAL OF MATERIAL
Publication number: 20170176941Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove, locally, a volume of material, in order to obtain the balance spring having the dimensions necessary for said predetermined stiffness.Type: ApplicationFiled: November 18, 2016Publication date: June 22, 2017Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et developpementInventors: Frederic KOHLER, Jean-Luc BUCAILLE, Olivier HUNZIKER -
Publication number: 20170176942Abstract: The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions to obtain a deliberately lower stiffness, determining the stiffness of the balance spring formed in step a) in order to compensate for said missing thickness of material required to obtain the balance spring having the dimensions necessary for said predetermined stiffness.Type: ApplicationFiled: December 8, 2016Publication date: June 22, 2017Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA-Recherche et developpementInventors: Frederic KOHLER, Jean-Luc BUCAILLE, Olivier HUNZIKER
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Patent number: 9323223Abstract: The timepiece movement includes a balance-and-hairspring oscillator and an escapement cooperating with the oscillator. The outer turn of the hairspring includes a stiffened portion (9?) arranged to at least partially compensate for the variation in the rate of the movement in dependence upon the oscillation amplitude of the balance caused by the escapement. The hairspring further includes at least one of the following features: a) a distance (R?) between the inner end of the hairspring and the centre of rotation of the hairspring lower than 400 ?m, b) a Grossmann curve (10) defined by the inner turn of the hairspring, c) a stiffened portion defined by the inner turn of the hairspring.Type: GrantFiled: October 22, 2013Date of Patent: April 26, 2016Assignee: PATEK PHILIPPE SA GENEVEInventor: Jean-Luc Bucaille
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Patent number: 9134701Abstract: A timepiece movement includes a balance-and-hairspring regulator and an escapement co-operating with the regulator, the outer turn (5) of the hairspring including a stiffened portion (6?; 6?; 6??) arranged to make the development of the hairspring more concentric, is characterized in that the stiffened portion (6?; 6?; 6??) is also arranged to at least partially compensate for the variation in the rate of the movement in dependence upon the oscillation amplitude of the balance caused by the escapement.Type: GrantFiled: September 4, 2012Date of Patent: September 15, 2015Assignee: PATEK PHILIPPE SA GENEVEInventor: Jean-Luc Bucaille
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Publication number: 20150248113Abstract: The timepiece movement includes a balance-and-hairspring oscillator and an escapement cooperating with the oscillator. The outer turn of the hairspring includes a stiffened portion (9?) arranged to at least partially compensate for the variation in the rate of the movement in dependence upon the oscillation amplitude of the balance caused by the escapement. The hairspring further includes at least one of the following features: a) a distance (R?) between the inner end of the hairspring and the centre of rotation of the hairspring lower than 400 ?m, b) a Grossmann curve (10) defined by the inner turn of the hairspring, c) a stiffened portion defined by the inner turn of the hairspring.Type: ApplicationFiled: October 22, 2013Publication date: September 3, 2015Inventor: Jean-Luc Bucaille
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Publication number: 20140192627Abstract: A timepiece movement includes a balance-and-hairspring regulator and an escapement co-operating with the regulator, the outer turn (5) of the hairspring including a stiffened portion (6?; 6?; 6??) arranged to make the development of the hairspring more concentric, is characterised in that the stiffened portion (6?; 6?; 6??) is also arranged to at least partially compensate for the variation in the rate of the movement in dependence upon the oscillation amplitude of the balance caused by the escapement.Type: ApplicationFiled: September 4, 2012Publication date: July 10, 2014Inventor: Jean-Luc Bucaille